Machine for boring bobbins.



y PATENTED AIIG-l 7, 1906.

o. Lg BAILEY, DEC'D. B II. BAILEY, ADMINISTEATBIX. MACHINE PoR BORINQABOBBINS.

-' APPLICATION FILED JAN. 21,1905. I

f C. L. BAILBRDEGD.

E. H. BAILEY. ADMINISTRATBIX.

4.MACHINF FOR BORING BO'BBINS.V

`APPLIV0ATI0N FILED JAN. 21, 190.5.

PATENTED AUG. 7, 19de.

5 sHzmssH-BHT 2.

N0. 828,176. PATENTBD AUG. 7, 1906. G. L. BAILEY, DEGD.

vL. JLBAILEY, ADMINIST'BATRIX.

'MACHINE FOR BORING BUBBINS.

APPLIGATIOH FILED JAN. 21', 19'05. f

l 5 Emma-saam s.

N0. 828,176.- PAT-ENTED AUG. "7, 1906,. C. L. BAILEY, DECD.

lE. H. BAILEY, ADMINISTBATBIX. MACHINE FOR BORING BOBBINS.

APPLICATION FILED JAN.21, 1905-l V Y 5y SHEETS-SHEET 5 UNTTED STATES PATENT orrion.

ELLA H. AILEY, OFVATERBURY, CONNECTICUT. ADMlNISTRATRIX OF CHARLES L. BAILEY, DECEASED, ASSIGNOR TO DRAPER COMPANY, F HOPEDALE, MASSACHUSETTS, A CGRPORATION OF MAlNE.

MACHINE FOR BORING BOBBINS.

Specification of Letters Patent.

Patented Aug. 7, 1906.

annimmt and January 21.1905. sario no! 242,051.

,To all whom/it may cfm/cern.A

Be it known that CHARLES L. BAILEY, deceased, (ELLA -H. BAILEY, administratrix, residing at Waterbury, Connecticut,) did invent an Improvement in Machines for Boring Bobbins, of which the following description, in connection with the accompanying drawings, is a specification, like numerals onr the drawings representing like parts.

xo This invention relates .to a machine for boring bobbins-such,- for instance, 'as are used in loom-shuttles, spinning-machines, winding-machines, Sac.' l

In the manufacture of these bobbins they -are first roughly turned out to approximately the desired shape and are then bored longitudinally to permit them to be placed on the s indles of the loom-shuttles or spinning-ma cliines. After this boring operation they arc zo further treated to put'them into their iinished condition. i

The present invention relates solely to the boring operation; Aand it has for its object to provide a novel 'machine for accomplishing z 5 this, which machine is automatic in its action.

The invention comprises a bobbiii-carrier adapted to support and hold the bobbins while being bored, boring devices, automatic 3o means to feedbobbins to the bobbin-carrier, and actuating means for the latter whereby the carrier is moved relative to the boring devices to bring iirst one bobbin and then another into position to be bored.

ln the preferred embodiment of the invention the hole in the. bobbin is bored at two operations, during the first of which a hole of uniform diameter is bored part way through the bobbin and during the second of which 4o the. holeis completed and given its final and desired shape.

The bobbin-carrier preferred is a rotary carrier and has an intermittent or step-bystep movement.

[ The two drills for performing the two described operations are mounted on a carriage movable toward and from the bobbin-carrier. During the first step forward of the bobbin carrierthaiirst bobbin-is brought into posi- 5o tion: to be a ted upon by oneof the drills, and while the carrier is at rest the drill-carriage is moved up and the hole -dri1led. While the Fig. 9.

earriagewis receded, thc bobbin-earrie'r is ad vancei another step, thus carrying the iirst bobbin into position to be operated on by the second drill and carrying a second or fresh bobbin into osition to be operated on by the ihile the'bobbin-carrier is in i his.

first drill.

position, the carriage is again moved for`\\'ar .and the two drills operate simultaneously on the two bobbins, one drill boring the initial hole in one bobbin and the other drill giri'ng the `final shape to the. hole of the other bohbin.

Suitable automati(I feeding im'ichanisin is employed to feed the unbored hobbin-s sing` to the bobbin-carrier, and the bobbin-earrier during its stepb}."step movement carries these bobbins into position to be aci-ed upon `first by one. and then the other of the drills.

All of these various operations are automatic, and so long as the hopper of the feed ing mechanism is supplied with unborcd bobbins the boring Voperation will be carried out. Referring to the drawings, Figure 1 is an end view of a machine embodying the invention. Fg. 2 is a top plan view thereof. Fig. 3 is a section, on an enlarged scale, on the line e e, Fig. 4. Fig. 4 is a detail of the means for holding` the tips of the bobbins in the bobbin'- carrier while said bobbins are being bored. Fig. 5 is a section on the line a' .r. Fig. 4. Fig. 6 is a side view ofthe machine. lool; ing toward the right, Fig. 1. Figs. 7 and ts are sections of the bobbin, showing different stages ofthe boring operation. Fig. 9 is a section on the line Iy y, Fig. 2. Fig. 1() is a section, on an enlarged scale, on the line aI 1, v

Figi). Fig. 1 1 a section, also on an enlarged scale, on the line b b, Fig. 9. Fig. 12 is a detail of one of Vthe gripping-jaws on the bobbin-oarrier. Fig. 13 is a perspective View of the pusher of the feeding mechanism. Fig. 14 .is a vertical sectional view through the feeding mechanism, showing the parts in a different position from the parts shown in l Fig.` 15 is a horizoiital section on substantially the line c, Fig. 6, showing the arrangement of driving-gear for th'e mechanism. Fig. 16 is a section on th(` line d d, Fig.

roo

spindle on which the bohbin-earrier is supported. Fig. L8 is a detail of the drivingpulleyl ro disks 4 and 5, fastto said shaft.

As stated above, the machine comprises a hobbincarrier, actuating means therefor, boring devices, and means to feed the bobbins automatically to the bobbin-carrier.v

` Bobbin-ccrrier.-The bobbin-carrier will iirst be described. The forni of bobbin-car4 rier herein shown is a rotary carrier having an intermittent or step-by-step rotation. lt is mounted on a shaft 3 and comprises two The shaft is j o'u'rn'aled in any suitable bearings 6 in the frame of the machine and 'is driven by mechanisin presently to be described. The disks 4 and 5 'each have means for supporting one I 5 vend of a bobbin, the disk 4 beingconstructed to support the butt-ends of the bobbins and lthe 'disk 5 the tip ends thereof.v Said disk 5 1is provided at its periphery with 'a plurality rof'outwardly'-op'ening recesses 7, (se'e Figs. 2,

zo erfand 5,) in which the tpso'f the bob'bins are .adapted to rest. A"hese 'recesses 7 are illustinted as having the`ja"dj11stable s'eat's 8 'on which 'the hobbins rest, said seats `beirng formed by 'the notched ends 'of 'adfjiistable z 5 blocks 9, which are suitably'guided between fpara'ilel fiange's '10 'on the face 'of saidd-isk 5. 'idach block isadjusted radially by inea'nsfofa "s'ifitahle -adj1istiI 1`, -screw 11 and is held 'in place by :a bolt 12 passingthrough a slot 3o therein., Each recess 7 'hastl'e 'end viall 1'3, aganstWhic-htlie end ofthe bobbinabuts, as y sect1 in Figs 2 and 4, and said en d Wall is pro,-

peint of 'thedi l `niay lpass as it emerges 'from 5 5 'the ybohbin npo'n vcompleting `the boring op-y vone/jaw of each pair being stationary andthe other "pivoted The stationary jaws aredesignated by 16, and each is shownasjadjustably securedon y the Idisk 'by vI neans of an adjusting`screW` 5o 317. `One stationary jaw is shown'on an enlargedscale Fig. '12,fron1`which it-Will be seen that the gripping-face of said jaw is lnotched, as at 17, to bdbbin 18. Said jaw '1s provided 'ivith the iingedge or'corner 19. rllhepivoted jaws .'are designated by 20, and'each comprises a Ahead Y2-1 `and a' tail or'arrn 22.K Each jaw is 'pivoted'onfasuitable fulcrlnn-block 23, car- 'ried in a slot in the disk 4,*ahd preferably the l6o fnlcruIn-'blocks are adjustable, as'seen in 9. The'tail 22 of eachfpivoted jaw carries a roll Which'bearson a stationary iam 24, said earn.y being supported yhy the shaft 3, "hilt yloosely mounted-thereon, Uso that the sh'aft .6 5 can turn therein. The cani is held station partially 'receive the.

assise ary'by a suitable arni- 25, the lower end of which is fast to. the frame 'of the machine. Each of the pivoted j aws is acted upon by asuitable spring '26, which tends normally Ato open said jaw away from its #corresponding stationar jaw 16. lf

From t e above it will be seen that as during the rotation of the disk/4 the tails 22 of the pivoted jaws vivipe overtiie raised portion of the cam 24 said jaws willhe closed` -toward the corresponding stationary jaws, and as saidtails pass off from the rise 24 the springs 26 will open said jaws away from the stationary jaws.

The gripping 'mechanism above-described 8 0 operates lto 'hold .the b utt-ends of the bobbins Whilethe boring'operation is proceeding. In order`to steady 4the tip ends of the bobbin, a steadying device is provided, herein shown as yielding arins'92, carried by 'a suitable stein 93,"as best seen in Figs. Lland 5. These vyielding arms arepositi-oned so. that as the bobbin-carrier rotates the tip ends of 4the bob'bins pass 'under''and enga-ge them, the bo'bbns 'being 'thus ,in `enga' ;enient with the armswhile the boring pera'tion is proceeding. lhe said ar'n'is therefore 4operate to r'inly hold the tip ends'of the bobbins in the recesses 7 'While said bo'bbinsare being bored. The stern 93 lpasses through a supportingarr'nd, adjustably carried by fa sfiitable 'stand'drbra'cket 95,:and said stein 93 is preferably s'cre.if-threaded, so that litcan be ad-l justed u and down inthe arnl, therebytovsecure, tlie requisite ressure 'of said arms IOO ' "lipo'n the hobbins as 't e latter pass beneath the 'arms As 'herein shown, the stem 93 is held in 'its 'adljnst'ed Eposition by'suitable locking-nuts 96, and it is held from rotating in theiarInQtiby a screw'Q'-,the tip end'of which Iengages a'slot or keywayin the stern.

The bobbin-carrier thus 'far described is given *an internlittent :or step-by-step movenient. ine goody-Jay offaccoinplishing this is 'by Inetns ofthe star-Wheel mechanism, '(shown best in Fig. 1-,l Whichcomprises a canidisk 28;"secnred to the shaft 3 and pro vided With a plurality 'of radially-arranged 'grooves or slots 29, 'and thefarin 30, fast on the shaft Slfandcarrynigapin 32 to enter and coperate 'with the slots 29 to advance the disk 28 one step atatine. The disk is held stationary W'liile the pin `32 is assing from one slot 29 to the next one by t -e concentric 'disk'33, Which'occupies a recess 34 in the peiiphery of the disk 28.

Bobbin'feeding mechanism-The unbored -bobbins 18'arfe placedin'a suitablehopper-S, Vfrom 'which they'are fed one iby l.one tothe b'obbin-carrier. At the "'bottorn'ol the hopper 'is situated apusher "36, 'l-(shoivn'best l1n gs. 9, 13, and 14,) which plays-'backend forth upon suitable yaysrg', 'carriedby the IIO iframe. ASaid'pusher'has a hentrai'opeiiing 33,

actuating elbow-lever 40, whichlever is fast to a rock-shaft 41, carried by the frame, and

is acted upon by a suitable spring 42, which tends normally to,throw it forward or toward the bobbin-carrier. When said pusher is in its forward position,.the bottom bobbin in the hopper rests on it, as shown in Fig. 9, while when said pusher is retracted, as shown in Fig. 14, the bottom bob/bin drops down in front of the pusher. If now the usher is moved forward, this lowest bobbin 1s pushed by the same out through the gate- Way 43 in the hopper and into the bobbincarrier, the butt-end of the bobbin dro ping into the notch and the tip end into te recess 7 in the disk 5.

44 designates a suitable pivoted gate, which normally-closes the gateway 43, but which is moved out of the way', as shown in Fig. 9, upon the forward movement of the pusher. 'k The pusher is actuated by the elbow-'lover 40, and the rock-shaft 41, on which saidlever 'is mounted, is actuated from a cam 45, (see Fig. 1,) carried by a suitable shaft 46. (See Fig. 6.) .For this purpose the rock-shaft 41 has fast therewith an arm 47, connected by a link 48 with one end of an elbow 49, the other end of which is acted on by the lever 45.

The shaft 46, as well as the shaft 31 is driven from the main driving-shaft 56 by suitable gearing presently to be described, and Shown best in Figs. 15 and 6. Said main driving-shaft has thereon a main driving-pulley 51, from which power is received,

^ and a worm, which meshes with a worm-gear 52 on a cross-shaft 53. Said cross-shaft carries a bevel-gear 5,4, meshing. with a bevelgear 55 on the shaft 31. Fast on the shaftl is a pinion 56, meshing with and driving a gear 570 on the shaft 46.

Boring mechanism-Mounted on suitable ways on the frame is a carriage 57, which' carries in suitable bearings two shafts, on which are driving-pulleys 5S and 59, respectively. (See Figs. 2 and 6.) Each shaft carries a chuck 60, in which a ldrill is supported, said drills being designated 61 and 62, respectively. The drill 61 is of uniform diameter throughout, 'while the drill 62 is of i smaller diameter at its tip than at its' base. The carriage 57 has a reciprocating motion toward and from the bobbin-carrier,. and to provide for this l have pivoted to said carriage a link 63, which is connected to one arm of an elbow-lever 64, (see"Fig.'6,) the other arm of which is slotted, as at 65'. Operating in the slot 65 is 'a crank-pin 66, carried 'by a gear 67, which is mounted on a stud or pin 580, journaled in the frame'.

Fromthe above it will be seen that theretation of the gear 67 oseillates the elbowlever 64, and the construction'is such that (See Fig.' 15.) The gear 67 meshes with and is driven by a pinion 68, fast on the shaft 53.

ward movement, but a Vquick upward movement, because during the downward move ment the pin 56 is working at the outer end of the slot, while during the upward movement it is at the inner end thereof. Consequently the carriage 57 has a slow movement toward the bobbin-earrier and a quick movement in the opposite direction.

The crankshaft 66 is preferably made adjustable thereby to-adjust its throw and the reciprocating movement of the carriage. hAs herein shown, said crank-pin has screw-vthreaded engagement with an adjustingscrew 69, which is carried by a suitable block 70, mounted on the face of the gear 67. By turning said adjusting-screw the crank-pin can be moved toward and from the center of the gear, and thus its throw diminished or increased. The relative size of the gears 67 and 68 is such that it takes two revolutions of the gear 68 to rotate the gear 67 once. The gears 54 and 55, however, areof the same size, and therefore the shaft 31 will make two rotations during each complete reciprocating movement of the carriage 57.

In order to properly time the movement of the bobbin-carrier with reference to the carriage 57, it is necessary therefore to provide means whereby the crank-pin 32 shall engage the grooves 29 only during every other rotation of the shaft 31. Accordingly provision is made whereby the shaft 31 may be reciproeated longitudinally, thereby to carry the. crank-pin 32 into and out of engagement with the star-wheel 28.

The gears 55 and 56 are mounted on a sleeve 72, which is supported in suitable bearings in the frame, but prevented from longitudinal movement, and through which sleeve the shaft 3l passes, said shaft being splined to the sleeve. (See Fig. 15.) Fast to the shaft 31 is a collar 73, carrying a roll 74, which engages a groove 75 in a cam 76, fast on the shaft 46. The gears 56 and 570 have a ratio of one to two, and therefore the shaft 31 makes twoA revolutions to each revolution of the shaft 46. With this construction it will be evident that during one-half of each revblution of the shaft 46 the shaft 3 1. will be carried' to the right, Fig. 6, while durthe other half ofthe revolution of said shaft 46 the shaft 31 will .be moved to the left. In other words, during one revolution of the shaft 31 it will be in its extreme position to the right, Fig. 6,. while during the next revolution it will be in its extreme position to the left. When it is in the right-hand position, the pin 32 is beyond the star-wheel 28, and therefore does not engage in the grooves 29, while when said shaft is in the left-hand position said pin 22 is in the proper vertical plane to engage the groove 29, and thus move the star-wheel forward.

The objectinspeeding up the shet 3l so f IOO possible delay. Owing to the speed at which.A

the shaft 31 operates, it Will be obvious that the time consumed'in advancing the bobbinxorcarrier each step is muchgless than it wopld be if said shaft 31 were rotating slower. '1f-U 0pe1atz`on.--`Vi7hen the bobbin-carrier istat rest, a notch 15 and a recess 7 of said carrier stand opposite the gateway leading from the hopper 35, and during the rotation of thel shaft46 the rise of the cam 45 passesou't from under the end ofthe-.lever 49, thereby permitting the spring`2i2 .to throw the pusher.

36 forward and carry a bobbin into said recess and notch, as shown in Fig. 9.- By the time a bobbin has thus been fed to lthe bobbin-carrier the cam 76 has carried the shaft 31 sufliciently far to the left, Figs. 6 and 15, so Ithat during thenext rotation of said shaft the pin 32 engages a groove 29, and thereby advances the bobbin-carrier one step. During this advancing movement the-tail 22 of one of the'gripping-jaws rides up onto the rise of the cam 24, thereby clamping the butt of the bobbin between itself and the corresponding iixed jaw 16, and at the same time the tipl end of thebobbin passes under one of -the steadying-arms 92. At the end of the advance movement of the bobbin-carrier the bobbin thus fed to the device has its butt-end gripped between the, gripping-jaws, as above described., audits tip end engaged by the steadying-arms 92. -Said bobbin is also in position to be acted upon by the first drill 61, and while the said carrier remains stationary the-carriage 57 is moved forward, thereby advancing said drill 61 into and part way through the bobbin and boring it, as` shown in Fig. 7. y place the cam 76 throws the shaft 31 to the right, Fig. 6, so that during the second revolutionof said shaft the pin 32 passes by the face of the star-Wheel 28, but does not engage it. During the boring operatidn another bobbin has been fedto the next notch 15 and recess 7, and as the "carriage 57 advances' to thus bore the bobbin a positioning device 910 a on the carriage is brought against vthe bobbin just fed-tothe carrier, thereby to properly position said bobbin longitudinally incase such action is needed. `When the carriage .'57 is retracted to withdraw the drill 61 from the bobbin, the cam 76.again throws the shaft 31 tothe left,.Fig. 6, so that the crankpin 32 engages a groove 29 and gives the bobbin-carrier another step forward, thereby to carry the first bobbin into positionv to be acted upon by the drill 62'and the second bobbin in position to be acted upon by the drill 61. The. bobbin-carrier then remains During the `time this is takingl ses, '17e stationary, and the carriage v57 advances,`

thereby partially'drilling a hole of uniform size part way through the second bobbin, as

shown in Fig. 7, and completing the boring Y bm as. fast as they are'fed to the bobbin-carricr. -As the tails 22 of the various grippingjaws pass off from the rise of the cam24,

' thereby to release the bobbins, the latter are discharged fron'rthe bobbin-carrier by means of a' suitable ejector 80, which is in the form ofa stationary arm carriedby the shaft 801 and adapted to force 4the bobbins out from the bobbincarrier as the latter rotates. Said arm is preferably adjustable and is held n its adjusted position by .a suitable adjusting-screw 8l. l

82 designates an oil-reservoir from which delivery-pipes 83 extend, said pipes operatinglto deliver oil to the drills to keep theni coo For convenience in assembling the arts of the bobbin-carrierit is constructed as s own in Fig. 17. The shaft 3`is hollow and has screwthreaded to one endfthereof a bushing 84, to which the disk or star wheel 28E-rigidly connected. A rod 85 extends through the shaft 3, and a Washer 86 at one end of'said rod engages the bearing 6 and holds the shaft from longitudinal movement, while the other end of said rod has a nut thereon which engages IOO y suitable friction devices which will slip in .case of any jum ing of a bobbin.

As shown lin 1g. 15, the shaft 50 has a collar 90, made fast thereto by a screw 91 and provided Awith a face of frictional material 93, against which the hub of the driving-pulley 51 abuts.

On the outer end of the shaft 51 is a nut 92, and between the nut and hub of the drivingpulley is a washer, also of frictional material 93. By turning u the nut 92 the hub of the driving-pulley is c amped between two frictional surfaces, the friction of which is sufficient to drive the machine under ordinary circumstances. lf any undue resistance is encountered, however, the frictional matetrated is one which has been Jfound tobe eminently practical for the urposes described, yet it will be understood t at the inventionis not confined to a machine made in every parl ticular like that illustrated in the' drawings,

for many changes may be made inthe arrangement, shape, andl construction of the parts without in any way departing from 'the invention ex Dressed in the appended claims.

Having fully described the invention,what is claimed as new, and desired to be secured by Letters Patent, is

1. In a bobbin-boring machine, a bobbin# carrier com rising two connected disks each having aplpurality of peripherai-recesses to receive a bobbin, a plurality of adjustablymounted stationary jaws carried by one disk, a pivoted jaw cooperating with each stationary jaw, an adjustable fulcrum for each pivoted jaw,l and means to rotate said disks.

2. In a bobbin-boring machine, a bobbincarrier com rising two connected disks having a p urality of eri hera'l recesses to receive a bobbin, a p ura ity of stationary jaws mounted on one disk, a pivoted jaw cooperating witv each stationary jaw, an adjustable Jrulcrum for each pivoted jaw, and means to rotate. said disks. e 'i 3. In a machine for boring bobbins, a bobbin-carrier comprising two eonnecteddisks,v

one oi which has pairs of radially-arranged ribs on its inner face, a mounted between the ribs of each pair, said block forming a seat to sustain'one end of a bobbin,

' tion.

each

block adj ustably l and means carried by the other disk to grip'the other end of the bobbin.

4. 1n a machine for boring bobbins, a bobbin-carrier comprising two connected disks, one of which has pairs of radially-arranged ribs on its inner mounted betweenthe ribs of each pair, each block being notched at its end to vpresent a seat to receive a bobbin end, said disk having a-hole therein adjacent each pair of ribs, bobbin-gripping mechanism carried by the other disk, means to rotate said disks, and a drill for drilling the' bobbins axially, said drill be'- ing adapted to pass through the hole in the first-named disk during the drilling opera- 5. In a boring-machine, a bobbin-carrier comprising two connected disks, one having peri heral notches each Jformed with side face, a block adjustably wals and an adjustable bottom to engage the sides of the bobbin and a perforated end wall to engage the end of the bobbin, pairs of gri ping-jaws carried by the other disk, and a rill for' drilling the bobbin axially, said drill being adapted' to pass through thehole in the end wal In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. i

' ELLA H. BAILEY, Administratrice of Charles L. Bailey, deceased. Witnesses: i Y i Rosn A. CLAnKiN, ROBERT A.LowE. 

